Airworthiness Directive · Amendment 39-23471 · Hydraulic power
The Boeing Company Airplanes
This AD applies to all The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes. This AD was prompted by a report of an overheated alternating current motor pump (ACMP) that caused a fire in the main landing gear (MLG) wheel well. This AD requires a records check or inspection for any installed ACMP with a certain part number and applicable on-condition actions. This AD also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified by paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 777-29A0047 RB, dated September 11, 2025, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 777-29A0047 RB, dated September 11, 2025.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 777-29A0047, dated September 11, 2025, which is referred to in Boeing Alert Requirements Bulletin 777-29A0047 RB, dated September 11, 2025.
(1) Where the Compliance Time column of the table in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 777-29A0047 RB, dated September 11, 2025, refer to the original issue date of Requirements Bulletin 777-29A0047 RB, this AD requires using the effective date of this AD.
(2) Where Boeing Alert Requirements Bulletin 777-29A0047 RB, dated September 11, 2025, refers to part number 3033115-100 as a replacement part, for this AD, part numbers 66133-06 or 66068-08 are also acceptable replacement parts.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
